In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: What was his first victory of the year? Passage:Race 1 was held on Saturday 10 May. Mark Winterbottom took his second race victory of the year, a surprisingly comfortable win ahead of the HRT pair of Mark Skaife and Garth Tander. Tander was pushed hard by Steven Richards and Craig Lowndes. A collision at race start saw Jason Bright touch Greg Murphy who in turn made contact with Michael Caruso, sending Bright and Caruso out of control towards turn 7, where crossing the track Caruso struck Shane van Gisbergen. The incident triggered a safety car. Jamie Whincup and Will Davison charged through to seventh and eight positions from poor qualifying places. James Courtney was fighting amongst that group but fading rear tyres led Courtney to attempt defensive moves that raised the ire of race control, leading to first the bad sportsmanship flag, then a black flag drive through penalty which dropped him down field.

Example Output: a

Example Input: Question: Which Bala directed movie that Ameer served as an assistant had a higher box office? Passage:Ameer Sultan was born in Madurai, Tamil Nadu India. He initially studied economics and worked as an entrepreneur before starting to work as an assistant director to Tamil filmmaker Bala on his award-winning film Sethu in 1999 and Nandha in 2001. Shortly after, he directed his first film, the romantic comedy Mounam Pesiyadhe (2002). The film starred Suriya in the lead and became Trisha Krishnan's first release featuring her in a leading role. The same year, he began his own production company, Teamwork Production House. His second directorial was the mystery thriller Raam, which he produced himself and released A three years later. The film, which revolves around an autistic teenager, portrayed by Jiiva, who is highly attached to his mother, but becomes suspected of having murdered her, received critical acclaim, with Jeeva and the film's composer Yuvan Shankar Raja winning awards at the 2005 Cyprus International Film Festival. It also became Jeeva's breakthrough in the film industry, who till then had appeared in two unsuccessful home productions only. In 2007, he directed the drama Paruthiveeran set in a village in Tamil Nadu, which marked the debut of Karthi, younger son of Sivakumar and brother of Suriya. Critics heaped high praise on the film and Ameer's direction, while Karthi as well as Priyamani, who performed the female lead, won several notable prizes for their performances. Paruthiveeran remains Ameer's most acclaimed work, having received six Filmfare Awards South including the Best Film and Best Director trophies, two National Film Awards, two Tamil Nadu State Film Awards and four Vijay Awards. The film further fetched accolades at international platform, winning the Best Film Award at the Osian's Cinefan Festival of Asian and Arab Cinema and Netpac Special Mention award at the Berlin International Film Festival. He did his fourth directorial, Aadhi Bhagavan, featuring Jayam Ravi and Neetu Chandra in the lead roles, released 2013 for positive reviews. Ameer's next film is Jihad which is his own production. That is a love story.

Example Output: a

Example Input: Question: What was the name of Lukas' mother? Passage:Thomas Christian David (December 22, 1925 – January 19, 2006) was an Austrian composer, conductor, choral conductor, and flutist. David was born in Wels, Upper Austria in 1925. He moved to Germany in 1934 at the age of nine with his father, composer Johann Nepomuk David, and mother. Thomas's younger brother, Lukas David, (born 1934) later became a violinist. In 1967, at the age of forty-two, he married (), a Persian Opera singer and they moved to Iran. David was the chief conductor of the orchestra of the National Iranian Television NITV, and also taught at the University of Tehran for seven years until 1973. He had an enormous and invaluable role in the growth and development of the Classical music in Iran. He conducted numerous masterpieces in different venues in Iran from late 1960s to late 1990s.

Example Output:
a

